Digital watermarking
New Iterative Geometric Methods for Robust Perceptual Image Hashing
DRM '01 Revised Papers from the ACM CCS-8 Workshop on Security and Privacy in Digital Rights Management
Content-Based Digital Signature for Motion Pictures Authentication and Content-Fragile Watermarking
ICMCS '99 Proceedings of the IEEE International Conference on Multimedia Computing and Systems - Volume 2
Structural digital signature for image authentication: an incidental distortion resistant scheme
IEEE Transactions on Multimedia
Fault resilient and compression tolerant digital signature for image authentication
IEEE Transactions on Consumer Electronics
A robust image authentication method distinguishing JPEG compression from malicious manipulation
IEEE Transactions on Circuits and Systems for Video Technology
Methods for image authentication: a survey
Multimedia Tools and Applications
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We propose a novel method for image authentication which can distinguish incidental manipulations from malicious ones. The authentication fingerprint is based on the Hotelling's T-square statistic (HTS) via Principal Component Analysis (PCA) of block DCT coefficients. HTS values of all blocks construct an unique and stable "block-edge image", i.e., Structural and Statistical Fingerprint (SSF). The characteristic of the SSF is that it is short, and can tolerate content-preserving modifications while keeping sensitive to content-changing modifications, and can locate tampered blocks easily. Furthermore, we use Fisher criterion to obtain optimal threshold for distinguishing manipulations. The security of the SSF is also achieved by encryption of the DCT coefficients with chaotic sequences. Experiments show that the proposed method is effective for authentication.